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Bedgear® M1X Series Performance Memory Foam King Mattress in a Box

Model #: M1X-K
At a Glance
Our M1X performance mattress wicks away moisture, keeps cool air flowing, and offers softer support without the sink. Our performance mattresses are designed with layers of patented technology that supports your body as it regulates its temperature and adapts to you as you sleep, so you wake ready for the day.
$1,499.99Save $NaN

Get to know this product.

M1X Series Performance Mattress

The M1X is all soft support, no sink. With layers of breathable fills wrapped in temperature-regulating fabrics, you'll feel weightless and breezy, all night long.

  • Softer, contouring feel
  • Four layers that won't trap heat
  • Moisture-wicking and air flow fabrics

Feels soft, works hard.

Thick layers of breathable Boost® and React® foams cradle your every curve and create a plush feel without the "sink" you get from even top-of-the-line memory foam beds

Air flow-enhancing Boost-X® amplifies the conforming quality and resilience of the top layers—while also creating a smooth transition from the up-top softness into the high-density base that helps your mattress keep its shape without sagging over time.

The Climate Control

Our fills are all designed to keep you cool—and so are the fabrics we've engineered for the exterior. As Dri-Tec® wicks away moisture, Air-X® siding ventilates, regulating body heat for uninterrupted sleep.

  • Dri-Tec Fabric - Patented tri-level weave wicks away heat and moisture, keeping you dry.
  • Air-X Panels - Flexible, three-dimensional material vents warm air away from the body.

The Build

  • 1.5" Boost - Firmer breathable foam keeps you gently elevated.
  • 1.5" React - Softer breathable foam adapts to you without sinking.
  • 1.5” Boost-X - Extra-breathable firmer foam acts as an elevating transitional layer.
  • 7" High-Density Foam - Breathable base holds its shape and supports top layers.


All foams are CertiPUR-US® certified:

  • Made with safe materials (no heavy metals, no formaldehyde)
  • No harmful odors or emissions
  • Made without phthalates regulated by the Consumer Product Safety Commission


  • The M1X is compatible with all bed frames and foundations, including power bases.


  • 10 Year Warranty

*Mattress only, other pieces sold separately. Image may not depict actual size.


Misc. Specs

Product Weight (lbs.)96
Height (in.)12
Mattress SizeKing
Width (in.)76
Length (in.)80
Manufacturer Warranty10 Year
Double Sided MattressNo
CollectionM1X Series
Mattress ConstructionMemory Foam
WarningProposition 65 Warning for California Residents